Firearm



F. A. STAFFORD.

FIREARM.

vAPPLICATION FILI-:D JUNE 8. i917.

Patented Aug. 9,1921.

2 SHEETS-SHEET l A TTOBNE YS F. A. STAFFORD.

FIREARM'l APPLICATION FILED IuIIE 8,1911.

' PatentedAug. 9, 1921.

2 SHEETS-SHEET 2.

,4 TTORNE V8 .TN OFFICE-7 AFRANCIS A. STAFFORD. OF FULTON, 'NFWFORJL AssrGNoR TOTHF HUNTER ARMs` COMPANY TNO., OF FLTON; NEW YORK, A CORPORATION oF NRW YORK.

Afpncation fned Jugn 8,1917.Y serial 110.1123539.

To all whomy it zzo/acera)V i Be it known that I, FRANCIS STAFFORD,

a citizen of the United States, and a residentof Fulton, in the countyofOswego and State of New York, have linventeda Vcertain new and useful Firearm, of which the following is a specification.'V

This invention hasforits object a particularly simple and efficient arrangement and construction of the ring mechanism and barrel locking mechanism; and the invention consists in the combinations and con- I structions hereinafter set forth and claimed.

i frame, omitted.

Fig. 5 is aV fragmentary elevation taken vfrom the left side of. the frame and partly in section.. f

Fig. 6 isa fragmentary sectionalview on line e. e,rFig. 2.

Fig. ,7*is ai fragmentary sectional.view` on i line 7-7, Fig. 3.'

Figs. 8 and9 are, respectively',,lfrontelevation and plan .of the locking bolt 1 designatesthe frame which includes the breech block 2. 3 isvthe barrel'which, in this form of my invention, is hinged at14 to the frameas ina break down shot gun.- 5 is the fore-piece. J f 1. Y

The breech block is formed withv a bearing 6 which opens through itsrear faceand with a slot 7 'opening through its top Vand into the cylindrical bearing, the bearing usually extending lengthwise ofthe gun land being nearly horizontal, and the slot extending lengthwise' of said bearing and receivinga rearwardly extending lug 8 on the barrel.

9 is a rotating bolt journaled in the bearing 6 and having means as arc-shapedhooks for interlocking with the lug 8, it being here shown as acylinder'having a lengthwise slot 10 and a circumferential slot 11 intersecting the slot 10, these two slots forming arcsliaped hooks 12, 13 which interlock with Specification of Letters Patent. Y Batented `closed i The olt is actuated by a lock *orv thumb Y Aug. 9, 192,1.

the lugvSf The hook 12 moves throughA a slot 14 in the lug 8 and the vhook 13 moves Y Y over a rearwardly.v extending shoulder 17 on the end of the lug. When the b olt is turned to its locked position, the hooks extend throughthe slot 14 and over the shoulder 17, respectively, and hold the barrel in its osition. Y

lever 18, and is formed .with 4a-shank 19 extending through the uppertang .20` of the to rotate the same. This .connectionis here shown as a radially extending pin-21 mount- .ed on theshank 19 and extending into and feo frame and having a connection with the .bolt n n' slidably engaging the walls of an eccentriy Vcally located opening in the rear end ofthe bolt 9. This pin 21 is provided with a'fork 22vat 'its rear endwhich embraces the shank 19 and .which is connected thereto Vbya trans# verse pivot 23, the pin 21 having a slight Q pivotal movement during the rocking of the bolt. A

The shank 19 extends vertically into the frame and-terminates between the .top and Vbottom ofthe frame and usually above the central part of the frame, `it beingy here shownl as supported -at its lower end'v on a shelf 5,24 extending Yrearwardly from Y. 'the breech Yblock2-above the center thereof, and

' secured .thereto by;screws 25 VVextending throughdownwardly extending flanges .on the shelf and into the breechblock.

A spring normally tends to hold the thumb` leverf-in itsl normal position, .that is, Vin its. position assumed v hen the locking bolt -9 is in its locked position. v

As here. shown,.the shank is provided with a radiallyextending shoulder 26 at its lower endilcontiguous to the shelf -24, `which. is acted. upon by la spring-pressed pin 27 ar-A rangedin the lenght'wise bones28- v.they breech block. r1`he shoulder 26 is Vhere shown as separableJ from the shank andpis in the` form of a ratchet tooth on a disk mounted on a square axial studj26a on the lower Vend of the shank. V

A. fastening screw 29 extends verticallyv upwardly through the shelf 24 and threads into the' stud.

The locking boit is had in its unlocked y 8, the latch also having a shoulder 33 forV entering a notch 34 in the lower side of the rotating bolt, the notch 34 coming into position vto receive the latch 31 when the boltA -The cut out 9 is in its unlocked position. 6 is long enough to permit partial rotation of .the bolt and .the end walls thereof limits themovement of the rotating bolt.

' When the spring-pressed latch is in its locked position, its upper end is in the path of the 4barrel lug 8 and as the barrel moves to its closed position, this lug engages the upper end of the latch and depresses 'the latch to-remove its locking shoulder 33 out of engagement with the notch 34, thus permitting the spring of the thumb lever 18'to return the thumb lever 18 to its closed position and thereby move the bolt 9 to its locked position.

p 35 designates .the hammer forming part of the firing mechanism, this hammer being located centrally of the frame beneath the shelf 24 and engaging directly with the firing pin 36 located centrallyrof the breech block and extending in a vertical plane rearwardly therefrom instead of obliquely therefromh351'is the hammer spring arranged in a lengthwise'bore located centrally of the breech block and acting on a plunger w35b icoacting with the tail of the hammer. j

Y As shown in Fig. 5 the firing pin 36 moves in a bore V37 in the breech block and has a head 38 at its rear end movable in a countersink 39 Vat the rear end of the, bore 37,

Vthehead coacting atiits rear sidewith the wall of a recess 40 inthe shelf24 and at its Vfront side withY the shoulder 441 Vformed by the counte1sink39`at the rear of the bore 37. The n hammer,v1 hammerl spring and the firing pin arezthus located `centrally of theJ gun, A` and, Y owingto thev shelf 24 andthe manner of supporting the'thumb'lever, said 'Y hammer is centrally located, in a particularly simple and efficient manner, in such position that it can coactV with the vfiring pin.' The hammer 35 is here shown as provided with an offset or laterally Vextending arm 43 for coacting with themc'ocking mechanism Vhammer and cocks the hammer.

Vprojecting lthereof and ybetween the top and thel bot- Ksigned" my name,

operating during the movement downwardly by those skilled in the art, and'therockv arm '46 presses against a'lugV or shoulder 48 on the offset or laterally extending arm 43.

against the offset of the centrally-locate W hat I claim is zi 1. Ina gun, a frame including a breech block, a barrel hingedl to the frame, a shelf from the breech, block centrally tom of the frame, a lock'for holding the 'barrel in its normal position, a thumb lever carried on the top of the Vframe and having its shankv engagedrat its llower end with the shelf, and firing mechanism including `a hammer located` directlyV below the shelf `centrally of the frame, substantially as and for the purpose specified. l

2. vIn a gun, a frame including a breech block, a barrelV hinged to the frame,V the breech block having a horizontal shelf be- Htween its upper and lower sides andalso having a lock opening for the barrel above the shelf, a thumb leverhaving a shank exvtending(downwardly through the top of the frame tothe rear of the opening for the "During the Vbreaking of the .gun Vthe shaft 44 is rocked and the arm 46 thereof bears lock and coacting with the lock, thelower end of the shank being engaged with the shelf, av 'firing pinmovable ini-the breech block below the shelf, and a Vhammer mov- Vable directly beneath the shelf into and out of engagement with the ring pin, substantially as' and for the purpose described.

Y In vtestimony whereof, I Vhave 'hereunto at Fulton, 1n the county of Oswego, and State of New York, this 31st day'ofvMay, 1917. j

FRANCIS ajsTArroRD, 

